She is wearing it open at the front.
The top has bell sleeves & an open embroidered feature on both the front & the back yokes.
The shirt is a previous seasons model and is no longer available in stores (unless you can find old stock).
However you can find similar styles in surf & jean stores as these stores cultivate the prarie/boho look that this shirt exhibits.
It is also worth exploring other seasons' designs in Alice McCall as designers often repeat features of their collections, these features becoming almost a trademark look as to their brand's style.
So here are some options I have come up with:
A Wrangler top with a lace pattern on the yoke at the front & back. $100
Its also available in black & the photo of the front was only shown in the black version.
A Target Free Fusion shirt with a lace yoke. $35
Wear it open like Nina.
Wrangler "Dawn" white shirt $100
This shirt has no lace, but its got that whole boho feel happening with its batwing sleeves. Roll up the sleeves & wear the front open like Nina.
Witchery Ovarian Cancer Research Foundation white shirt $150
(all proceeds go to ovarian cancer research)
You can achieve a Nina look by leaving this open, roll up the sleeves, add a long scarf & off you go.
Alice Mccall "Talking About" top, $135 from $260
This top is a pale lavendar, sheer with a small pindot lace.
I can see Nina wearing it even though it doesnt have a button front.
The top's vee neck is a perfect foil for a long boho scarf.
Alice McCall "Alfons" blouse, original $229, now sold out
I'd be checking ebay, etsy etc for this.
Alice McCall swing top, button front from the autumn/winter runway of 2012.
OK, so I cheated - this one is sold out too.
But hopefully you get the drift of the style to look for.
See anything you like?
Which top would Dr Patrick like best?